Type-writing machine.



E'. P, KUNATH. TYPE WRITING MACHINE. APPLIOATION FILED SEPT. 16, 1905.

Patented Mar. 9', 1909.

UNITED sTATns PATENT OFFICE.

EDWARD F. KUNA'II-I, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

yPatented March 9', 1909.

Application filed September 15, 1905. Serial No. 278,571.

To /LZZ wom it may concem:

Be it known that I, EDWARD F. KUNATH, a citizen of the United States, residing in Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Type- Writing Machines, ofavhich the following is a speciiication.

This invention relates to the ribbon mechanisms of typewriting machines, and particularly to means for bringing into use different colors of ribbon at will.

I provide two or more se aratel ribbons of different colors and movab e independently of one another' to cover the printing point. One of the ribbons is wound in'v the usual ymanner upon s ools mounted on the framework.- The ot 1er ribbon. is mounted upon the carriage and extends from end to end thereof just in front-of the platen and just below the printing line 'upon the platen.

The ribbon which is on the carriage may be carried by ribbon spools alsomounted on the carriage, but v I illustrate the same vas consisting merely of a strip which is caught by y its ends upon the carriage; this strip of ribl bon being usually red or other special color ,land being unfrequently used, so that one or ying the t two strips which arev readily attached or detached will last as long as the ordinary ribbon wound upon said framework spools. Means are provided for causing either ribbon to cover and uncover the printing .point dure strokes while the other ribbon remains i e,

I illustrate my invention as applied to the well known Underwood front strike writi-ng machine, in which the usual spools for the usual ribbon are mounted upon vertical axes one at each side ofthe printing point in frontjof the platen. Behind said ribbon, I stretch a'ribbon of red or other spe-cial color, which is caught at its ends upon hooks provided upon ends of the carriage so that the ribbon hes on'edge just in front of the platen and just below the printing line thereon.

.It is yieldingly supported at its ends so that it may vibrate freely up to cover the printing point. I providean individual carrier or v1brator for each ol the ribbons, one car- Said carriers are shown movable up and down by means of levers. The llatter may be substantially 4like those'commonly used in the Underwood machine, and may be mounted side by side,

vided whereby the actuators may 'be held in such a position that neither lever will be operated, so that neither ribbon is caused to cover the printing point at'the type strokes, this being a conveniencewhen making stencils.

AIn the accompanying drawings, Figure 1 is a perspective view illustrating my invention applied to an Underwood front strike writing machine; the rear ribbon being raised to cover the printing point. Fig. 2 is `a perspective view oi' the duplex ribbon actuator. F ig, 3 is a partial plan illustrating the method oi attaching the special ribbon to the end of the carriage.

Upon the front side of a revoluble platen seen at Fig. 1 in dotted lines, strike' the usual type bars (not shown) operated in the usual manner, as illustrated in U; S. Patent granted to me No. 833,227. In front of the platen is the usual ribbon 6,' winding back j and forth upon spools 7, 8, the latter mounted on vertical shafts 9, 10, usually journaled on the framework of the machine. Said ribbon 6 is threaded through an upstanding carrier 23 looseljr pivoted at 24 to the front end of a lever 25, which is pivoted upon a shoulder screw 26, the latter threaded into the bracket usually iixed upon the rear side of a' horizontal shift rail 28. Said lever 25 has an arm 29 extending up from said pivot 26 and provided with a laterally projecting pin 30, whereby the lever is operated during the backward and forward movement of said universal bar frame or table 2], in a manner presently to be explained.

In rearof the main ribbon 6, I stretch a supplemental ribbon 31 of red or other spe-V, cial color, which extends between the ends of the carriage and .by means of rubber or other elastic bands or rings 31a is detachably caught upon hooks Bib iixed u on the carriage in such position that ther-i bon extending 'therebetween lies on ed e just in front ofthe platen vimmediately be owthe Aprinting line. Said elastic loops 31'l are caught in metal tips 31c folded over the ends of the ribbon. This ribbon 31 may however, be carried by a pair of small spools one mount-- ed upon each end of the carriage, and it is threaded through a ribbon carrier 40 mounted directly behind the carrier 23, and having ears 41 to embrace the usual fixed vertical type-guiding post (not shown). Said ears '41 it will be'understood also confine the carrier 23 against lateral displacement. The carrier 4Q is pivoted at its lower end to a lever 45, similar to the lever 25 and alongside thereof, and pivoted -upon the shoulder 26 and having an upwardly extended arm 46 provided with a projecting pin 47 whereby it is operated. The 4ribboi'i-guiding pins 40L of the carrier 40 may be set in line with the forked main portion of said carrier, or otherwise; while the pins 23st of the front carrier j 23 are set forward of the fork of said carrier as usual. The pins 40a are thus well separated from the pins 23, 'and Athe carriers move freely one another.

Upon the usual reciprocating universal-l b'ar frame or table I mount a pair of similar actuators 50, 51 having deep vertical slots, 52., 53 to engage respectively the projecting lever pins. 47, 30.. baid actuators arepreferably integral, being formed u on the ends of a vertical plate 54 shiftab e along the .bracket 48, in the manner set forth in 'my copending application 268,854, whereby either` actuator 50 or 51 may engage its associated lever pin 47 or 30, so asto vibrate either.

*strokes 1s carried' on the same whether the lever 45 or 25, and hence to throw up either ribbon 31 or 6, to cause the same to cover the printing point during the operation of the types, while the other ribbon remains idle. At Fig. 1 the actuator 50 is shown in engagement with the lever pin 47, andthe tabe 21 is in its rear position, and. the lever is elevated, so that the ribbon 31 covers the rinting point. The arm 29 of the other ever rests against a stop 57 Vfixed upon the.

shift rail 58, said stop serving for both levers when they are idle. When the parts are 'in normal positions, the pins 30 and 47 are coaxial.

The necessary shifting of the actuators is effectedby alink 59, pivoted at 60 to an ear formedI upon the actuator member, and extending toward the'ri'ght-hand side of the machine, being ivoted at 61 to a crank 62 and vibrating i ly about said pivot 61 in horizontal direction during the backward and forward reciprocations of the table 21, the pi bt 61 being sufficiently loose for this purose. shaft. 63 which extends to the front of the machine and is there provided with a finger lever 64 mounted over the keyboard. Said lever has on its rear face a rojection 65 to 65 catch into notches 66 formed in a tablet 67.

uphand down independently of- Said crank 62 is mounted on a rock? vSaid tablet is colored at 68 to correspond with the color of the main ribbon 6 and at 69 to correspond with the color of the special ribbon 31 'so that when the operator desires either color to be printed he simply moves the handle 64 to the corresponding color on the tablet. A blank space 70- is provided' upon said tablet between the colored spaces so that when the o erator moves the handle 64 opposite said b ank space, bothribhons fail to operate at the type strokes, that stenciling may be conveniently done; since when the .member 54 is in a midway position neither pin 47 nor 30 can engage with its a'ctuator; the actuators being sufficiently sepa.-

rated., for this purpose. When, therefore, the actuator is 1n midway position, neither lever is vibrated, and hence the types strike directly upon the platen without an intervening ribbon, as is desired in stencil work. It is usual in said Underwood mae' ine to shift the platen up to enable the upper case characters v to print. For this purpose a shifting frame is provided, of which the shift rail 28 forms a part. The platen 1 is journaled upon'a `platen frame, which has a rolll to run upon said shift rail 28.- The latter is shifted up at the case-shifting operation, and with it rise the bracket 27, the lever 25 and 45, and the ribbon carriers 23-and 40, tgether with the ribbons carried therelnv; the deep vertical slots 52 and 53 in the ribbon actuators accommodatingl the up and.` down shift movements of the lever pins 47, 30. Thus *the operation of causing elther ribbon to cover Vthe printing point at the type.

platen is shifted upor dowm It will be understood that the ribbon 31 is attached to that portion of the carriage' which is near the platen frame and shifts u) and down with the laten independently of the main portion of t e carriage.

Having thus described my invention, I claim:

1. In a typewriting machine having a universal-baroperable at the type strokes, the combination with carriage, of a 4ribbonl mounted upon the carriage, a ribbon mounted upon the framework,and means for enabling the universal bar' tomove either ribbon to cover and uncoverthe printing point independently of the other ribbon. 2. Ina typewriting machine, the combin tion with a carriage provided with means for 120 carrlying a ribbon, of means upon the frame wor for carryinganother ribbon, and means for causing either ribbon to cover andl uncover the printing point at the type strokes,v

while the other ribbon remains motionless. 1 25 and means for moving either ribbon inde- 135:

trolled by the other carrier, and-means for causing either'carrierto be operated to vibrate its ribbon at the type strokes While the other remains idle. i

A5; In a typewriting machine having a platen'and a carriage therefor, the combination with a plurality of ribbon carriers mounted in front of said platen, of means vu )on -said carriage forv supporting a ribbon 4w ichv is controlled by one of said carriers,

winding-spools carrying a ribbon which is controlled by another of said carriers, and means for moving either Acarrier up to the printing 'point independently of the other carrier.

6. In a typewriting machine, the combination with a platen carriage, of a plurality of' ribbon carriers mounted one in front of the other in front ofthe platen, a plurality of ribbons controlled by said carriers', one of said ribbons mounted upon the carriage and extending infront of the laten from one end to the other'thereof, an `means for causing either carrier to eoveranduncover the printing point while vthe other carrier remains idle.

7. In a typewriting machine having a universal-bar operable at the type strokes, the combination with a carriage, of a plurality'of ribbons one of which is mounted upon the carriage, and a plurality of ribboncarriers independently operable by said universal bar, one carrier for each of said rib-g 8. -In a .typewriting machine having a platen'carriage and a universal-bar mounted upon the framework and operable at the type strokes, the combination with' a ribbon 'mounted upon the carriage, of means 'for enabling the universal bar to vibrate .the

ribbon to cover and uncover the printing point at the type strokes.

9. In 'a typewriting m'achine havingv a platen carriage and a universal-bar mounted uponv the framework and operable at the type strokes, the combination with a ribbon,

of yielding devices -whereby said ribbon is mounted upon the carriage, and means forl the printing platen carriage and a universal-,bar operable at the type strokes, the combination of a plurality of ribbons, yielding devices wherey one of said ribbons is mounted upon the carriage, means for supporting the other,

ribbon, and means for enabling said universal bar to .cause eitherribbon to cover and uncover the printing point at the type strokes.

11. In a typewriting machine having'a platen carriage and auniversal-bar vibrating at the type strokes, the combination of a ribbon strip extending along the carriage,

yyielding devices whereby the ends of said strip are caught upon the carriage, a ribbon vibrator mounted upon theframework, and

means for enabling said universal-bar to cause said ribbon to vibrate to cover and uncover the printing point at the type strokes.

12. In a typewriting machine having a platen and a platenfcarriagd the combination"f a ribbon strip extending along the carriage, yielding devices whereby the'ends of the strip are detachably caught upon the carriage, a vibrator mounted upon the.V

framework to control said ribbon; a second vibrator mounted in front of the first, spools for winding the ribbon which is controlled by said second vibrator,-and means for causing either vibrator to operate at the operation of the types. 4

13. In a' typewriting .machine having a platen and a platen carriage, the combination of two ribbons one mounted upon the carriage and the other upon the framework, and

" means for moving either ribbon at each type stroke to cover and uncover the printing point independently of the other ribbon, or for causing both ribbons to remain idle at the type strokes, at will.

1 4. In a' typewriting machine ,having a platen anda' platen carriage, the combination of .two ribbons one of which is mounted upon said carriage, two' carriers one for each of said ribbons,and means for causin 'either carrier to be operated while the ot er remains idle, or for causing both carriers to remain lidle at the type strokes, at will.

15. In combination, atypewriter ribbon strip of. a suitable length to extend only once along a typewriter carriage andhaving yield- -ing means -at its ends whereby it may be at-v tached to the carriage, and means for vibrating vsaid ribbon up to cover the printing point. at 'the type stro (es.

EDIVAVHD F. 'KUNATIL Witnesses z B. C. STIGKNEY, Krrrm FRANKFORT. 

